212031103057 has 2 divisors, whose sum is σ = 212031103058. Its totient is φ = 212031103056.

The previous prime is 212031102989. The next prime is 212031103129. The reversal of 212031103057 is 750301130212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125341489296 + 86689613761 = 354036^2 + 294431^2 .

It is a cyclic number.

It is not a de Polignac number, because 212031103057 - 2⁷ = 212031102929 is a prime.

It is not a weakly prime, because it can be changed into another prime (212031113057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015551528 + 106015551529.

It is an arithmetic number, because the mean of its divisors is an integer number (106015551529).

Almost surely, 2^212031103057 is an apocalyptic number.

It is an amenable number.

212031103057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212031103057 is an equidigital number, since it uses as much as digits as its factorization.

212031103057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 212031103057 its reverse (750301130212), we get a palindrome (962332233269).

The spelling of 212031103057 in words is "two hundred twelve billion, thirty-one million, one hundred three thousand, fifty-seven".